Aquarium building



FIG. 1 is a top plan view of an aquarium building showing my new design;

FIG. 2 is a front elevational view thereof; and

FIG. 3 is a cross-sectional view taken on line 3--3 of FIG. 1.

The broken line representation of water in FIG. 3 is for purposes of illustration only. 

The ornamental design for an aquarium building, as shown and described. 